16960
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If possibilitiy is relative, that might make accessibility non-transitive, and T the correct system [Dummett]
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Full Idea:
If some world is 'a way the world might be considered to be if things were different in a certain respect', that might show that the accessibility relation should not be taken to be transitive, and we should have to adopt modal logic T.
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From:
Michael Dummett (Could There Be Unicorns? [1983], 8)
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A reaction:
He has already rejected symmetry from the relation, for reasons concerning relative identity. He is torn between T and S4, but rejects S5, and opts not to discuss it.
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16958
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In S4 the actual world has a special place [Dummett]
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Full Idea:
In S4 logic the actual world is, in itself, special, not just from our point of view.
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From:
Michael Dummett (Could There Be Unicorns? [1983], 8)
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A reaction:
S4 lacks symmetricality, so 'you can get there, but you can't get back', which makes the starting point special. So if you think the actual world has a special place in modal metaphysics, you must reject S5?
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16959
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If possible worlds have no structure (S5) they are equal, and it is hard to deny them reality [Dummett]
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Full Idea:
If our space of possible worlds has no structure, as in the semantics for S5, then, from the standpoint of the semantics, all possible worlds are on the same footing; it then becomes difficult to resist the claim that all are equally real.
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From:
Michael Dummett (Could There Be Unicorns? [1983], 8)
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A reaction:
This is a rather startling and interesting claim, given that modern philosophy seems full of thinkers who both espouse S5 for metaphysics, and also deny Lewisian realism about possible worlds. I'll ponder that one. Must read the new Williamson….
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21947
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Power is localised, so we either have totalitarian centralisation, or local politics [Foucault, by Gutting]
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Full Idea:
Foucault's analysis suggests that meaningful revolution, hence genuine liberation, is impossible: the only alternative to the modern net of micro-centres of power is totalitatian domination. Hence his politics, even when revolutionary, is always local.
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From:
report of Michel Foucault (Discipline and Punish [1977]) by Gary Gutting - Foucault: a very short introduction 8
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A reaction:
It is hard to disagree with this.
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21946
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Prisons gradually became our models for schools, hospitals and factories [Foucault, by Gutting]
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Full Idea:
Foucault's thesis is that disciplinary techniques introduced for criminals became the model for other modern sites of control (schools, hospitals, factories), so that prison discipline pervades all of society.
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From:
report of Michel Foucault (Discipline and Punish [1977]) by Gary Gutting - Foucault: a very short introduction 8
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A reaction:
Someone recently designed Foucault Monopoly, where every location is a prison. All tightly controlled organisations, such as a medieval monastery, or the Roman army, will inevitably share many features.
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16954
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Generalised talk of 'natural kinds' is unfortunate, as they vary too much [Dummett]
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Full Idea:
In my view, Kripke's promotion of 'natural kinds', coverning chemical substances and animal and plant species, is unfortunate, since these are rather different types of things, and words used for them behave differently.
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From:
Michael Dummett (Could There Be Unicorns? [1983], 2)
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A reaction:
My view is that the only significant difference among natural kinds is their degree of stability in character. Presumably particles, elements and particular molecules are fairly invariant, but living things evolve.
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